The joke that the plane dropped bricks.

We don't analyze it from the aspect of brain teasers. We only analyze the problem that there is a plane in the sky and there are 500 bricks in it. 1 How many are left? "First of all, the question is not rigorous. "Lost 1 How many are left?" What's next? Didn't say it was a brick If a brick falls, the answer is that there are 499 bricks left. If a person falls, there are 500 bricks left. A plane fell, and it was still 500 bricks.